html,
body {
    background: #f8f9fc;
}

.pub_title {
    font-size: 26px;
}

/*  */

.joinus_top {
    width: 100%;
    height: 5.6rem;
    position: relative;
    background-image: url('../img/skr255.png');
    background-repeat: no-repeat;
    background-size: cover;
    display: flex;
    align-items: center;
    justify-content: center;
}

.joinus_top p {
    font-size: 34px;
    color: white;
    letter-spacing: 2px;
}

.joinus_tab {
    width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: center;
    border-bottom: 1px solid #dfdfdf;
    padding: 0.8rem 0 0 0;
}

.joinus_tab_item {
    font-size: 16px;
    height: 0.4rem;
    color: #333947;
    position: relative;
    text-align: center;
    margin-right: 1rem;
}

.joinus_tab_item:last-of-type {
    margin-right: 0;
}


.joinus_tab_item.on::after {
    content: "";
    width: 0.4rem;
    height: 3px;
    position: absolute;
    left: 50%;
    bottom: 0;
    transform: translateX(-50%);
    background-color: #202c70;
}

.joinus_tab_item.on {
    color: #202c70;
}

/*  */

.about_p1 {
    width: 1000px;
    margin: 0 auto;
    font-size: 14px;
    color: #333947;
    line-height: 30px;
    padding: 0.6rem 0 0.8rem;
}

.about_server_bg {
    width: 100%;
    background-color: white;
    overflow: hidden;
}

.about_server {
    width: 1200px;
    margin: 0 auto;
    padding-top: 0.6rem;
    padding-bottom: 1rem;
}

.about_p2 {
    font-size: 24px;
    color: #333947;
    line-height: 1;
    margin-bottom: 0.2rem;
    text-align: center;
}

.about_p3 {
    font-size: 14px;
    color: #5e5f60;
    line-height: 1;
    text-align: center;
    margin-bottom: 0.4rem;
}

.about_img1 {
    max-width: 100%;
    object-fit: contain;
    margin: 0 auto;
    display: block;
}

/*  */

.about_mi {
    width: 1200px;
    margin: 0 auto;
}

.about_mi_title {
    background-image: url('../img/skr262.png');
    background-size: cover;
    padding: 1rem 0;
}

.about_p4 {
    font-size: 24px;
    color: white;
    text-align: center;
    margin-bottom: 0.2rem;
    line-height: 1;
}

.about_p5 {
    font-size: 14px;
    color: white;
    text-align: center;
    line-height: 1;
}

@media screen and (min-width: 1200px) {}

@media screen and (min-width: 900px) {}



@media screen and (max-width: 800px) {}